TY  - BOOK
AU  - Cohen Louis
AU  -  Manion Lawrence
TI  - Research methods in education
SN  - 0415102359
U1  - T:f, N4 
PY  - 1994///
CY  - London
PB  - Routledge UK       
KW  -  EDUCATION
KW  - RESEARCH METHODS
ER  -